Vista - Geometry path relative to edges of Grid or Canvas

I am trying to draw a rectangle with 2 radiused corners, that will fill the
grid into which it is placed. As I only want 2 radiused corners I can't
use a std rectangle.

All the samples I have seen use constant values for the coordinates in the
geometry path and I can't seem to use "Margin" or "Grid.Left" tricks in this
instance.

Any suggestions ?

Thanks


--
Griff
(trying to make an industrial UI with XAML/WPF/c#)

Some ideas:

1. Use 3 rectangles, one will be with corners, the other two will hide 2 of
the corners
<Grid>
<Rectangle RadiusX="10" RadiusY="10" Fill="Blue"/>
<Rectangle Margin="10,10,0,0" Fill="Blue"/>
<Rectangle Margin="0,0,10,10" Fill="Blue"/>
</Grid>

2. Divide the space using a grid with 3 rows and 3 columns. The
widts(heights) for columns(rows) will be 10,*,10 and put the appropriate
figures in its cells

3. Make a custom control which will contain a Path. Override Measure/Arrange
and modify the Path points in it.
--
Valentin Iliescu [MVP C#]


"Griff" wrote:

> I am trying to draw a rectangle with 2 radiused corners, that will fill the
> grid into which it is placed. As I only want 2 radiused corners I can't
> use a std rectangle.
>
> All the samples I have seen use constant values for the coordinates in the
> geometry path and I can't seem to use "Margin" or "Grid.Left" tricks in this
> instance.
>
> Any suggestions ?
>
> Thanks
>
>
> --
> Griff
> (trying to make an industrial UI with XAML/WPF/c#)

> 1. Use 3 rectangles, one will be with corners, the other two will hide 2 of
> the corners
> <Grid>
> <Rectangle RadiusX="10" RadiusY="10" Fill="Blue"/>
> <Rectangle Margin="10,10,0,0" Fill="Blue"/>
> <Rectangle Margin="0,0,10,10" Fill="Blue"/>
> </Grid>


This unfortunately is not an option, as the shape is to be used for a
shadow with about 50% Alpha. Overlapping shapes makes a double density
shadow.

>
> 2. Divide the space using a grid with 3 rows and 3 columns. The
> widts(heights) for columns(rows) will be 10,*,10 and put the appropriate
> figures in its cells

This is definitely the answer in this case !
Many thanks.

> 3. Make a custom control which will contain a Path. Override Measure/Arrange
> and modify the Path points in it.

For a solid shape this may not be necessary, but where I want the actual
outline this may prove necessary.

> --
> Valentin Iliescu [MVP C#]
>
>
> "Griff" wrote:
>
> > I am trying to draw a rectangle with 2 radiused corners, that will fill the
> > grid into which it is placed. As I only want 2 radiused corners I can't
> > use a std rectangle.
> >
> > All the samples I have seen use constant values for the coordinates in the
> > geometry path and I can't seem to use "Margin" or "Grid.Left" tricks in this
> > instance.
> >
> > Any suggestions ?
> >
> > Thanks
> >
> >
> > --
> > Griff
> > (trying to make an industrial UI with XAML/WPF/c#)